Another Extensive thesis on East African DNA
It was brought to my attention last week, thanks to a comment on this blog made by the user 'Umi', that another thesis on East African DNA variation was publicly available online:Complex Genetic...
View ArticleDevelopment of Middle Stone Age innovation linked to rapid climate change
The development of modernity in early human populations has been linked to pulsed phases of technological and behavioural innovation within the Middle Stone Age of South Africa. However, the trigger...
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A summary of interesting recent genetics papers.
I'm taking a break from my Summer break to post a few interesting papers that have come out within the past couple of months.(1) Inferring Demographic History from a Spectrum of Shared Haplotype...
View ArticleDiversity of Lactase Persistence Alleles in Ethiopia: Signature of a Soft...
The persistent expression of lactase into adulthood in humans is a recent genetic adaptation that allows the consumption of milk from other mammals after weaning. In Europe, a single allele (−13910∗T,...
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An absolute chronology for early Egypt
An absolute chronology for early Egypt using radiocarbon dating and Bayesian statistical modellingAbstractThe Egyptian state was formed prior to the existence of verifiable historical records....
View ArticleTMRCA calculator for Python
I have converted the TMRCA calculator to run from only on Octave to Python as well, see here for the Octave version.It is specifically made for Python 2.7, and have not had a chance to test it on other...
View ArticleNew paper sheds light on the F-series YDNA SNPs
The F-series YDNA SNPs appeared at the end of last year with results from Geno 2.0, now an electronic pre-print at arXiv.org sheds some light on the discovery of these SNPs.The paper, entitled : Y...
View ArticleBitter Taste Sensitivity in Africa
Origin and Differential Selection of Allelic Variation at TAS2R16 Associated with Salicin Bitter Taste Sensitivity in Africa Bitter taste perception influences human nutrition and health, and the...
View ArticleMore East African mtDNA Charts
Below are more East African mtDNA bar graphs from the Hirbo Thesis, the complementary YDNA charts can be seen in this post, along with the Boattini paper featured here, this gives us a more complete...
View ArticleY TMRCA Calculator as a Web App
The Y DNA (STR) TMRCA calculator can now be accessed as a web application with full functionality here:http://ehelix.pythonanywhere.com/It is also embedded in this blog in a new page (above)UPDATE...
View ArticleEthiopian YDNA J STR Analysis - An addendum
In the past, I had carried out a TMRCA (STR) analysis of YDNA haplogroup J haplotypes from Ethiopia using the primary dataset from the Plaster thesis that was discussed here. While that particular...
View ArticleComprehensive Ethiopian YDNA TMRCA Estimates
Find below a comprehensive list for all central TMRCA estimates calculated from the Plaster thesis for 6 UEPs (look at this post under Interactive Chart of Figure 3.2 for the frequencies of the UEPs)....
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YDNA E-M123; A closer look
E-M123 (as well as E-M34) was first discovered by Underhill(2000) and is found with a low to medium frequency distribution in East Africa and the Middle East, while it has a low frequency distribution...
View ArticlemtDNA from Southern Africa
Reference mtDNA from Southern Africa from the pre-print "Migration and interaction in a contact zone: mtDNA variation among Bantu-speakers in southern Africa" (Thanks to Maju for the referral)
View ArticleWas skin cancer a selective force for black pigmentation in early hominin...
Some excerpts from a very interesting read, I suggest reading the whole article here:http://rspb.royalsocietypublishing.org/content/281/1781/20132955.fullDark or black skin lowers the risk of...
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The $1,000 genome
.................The price of sequencing an average human genome has plummeted from about US$10 million to a few thousand dollars in just six years (see ‘Falling fast’). That does not just outpace...
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Modeling 3D Facial Shape from DNA
While still at its infancy, this technology is quite fascinatingAbstractHuman facial diversity is substantial, complex, and largely scientifically unexplained. We used spatially dense quasi-landmarks...
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Median Joining Networks
This post will be dedicated to YSTR median joining networks I will be creating using the Fluxus Network Software©The Y TMRCA calculator now also has the capability to create the input file necessary...
View ArticleGenomic and cranial phenotype data support multiple modern human dispersals...
SignificanceCurrent consensus indicates that modern humans originated from an ancestral African population between ∼100–200 ka. The ensuing dispersal pattern is controversial, yet has important...
View ArticleMutation rate of the nuclear genome is getting a fossil calibration
The SMBE 2014 conference is showcasing a presentation where a 45,000 year old genome is being fully sequenced by Fu et al. and where the sequence will be used to calibrate, to my knowledge for the...
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